Sulphonium bases



Patented Mar. 8, 1938 UNITED STATES PATENT OFFICE SULPHONIUM BASES No Drawing. Application March 28, 1936, Serial No. 71,511. In Germany April 3, 1935 2 Claims.

Our present invention relates to sulphonium bases.

U. S. Patent No. 2,040,061 relates to quaternary ammonium compounds derived by farreaching alkylation from mixtures of polymeric ethylenepolyamines, which compositions are characterized by the property, on after-treatment therewith of dyeings on cellulose materials by means of substantive dyestuffs, of substantially improving the fastness of such dyeings to water, perspiration, boiling acids and washing.

Our present invention relates to the corresponding sulphonium bases derived from aliphatic polysulphide compounds by far-reaching alkylation being therefor aliphatic bases containing a plurality of sulphonium groups, which products are likewise characterized by the property, on after-treatment therewith of dyeings on cellulose material by means of substantive dyestuffs, of substantially improving the fastness of such dyeings to Water, perspiration, boiling acids and washing.

In order to further illustrate our invention, the following example is given, the parts being by weight and all temperatures in centigrade degrees. We wish it, however, to be understood that our invention is not limited to the particular products nor reaction conditions mentioned therein.

Example To 129 parts of oc-diChlOlOhYdI'iIlG 480 parts of an aqueous solution of sodium sulphide of strength are added. The mixture is held for 6 to 7 hours on a boiling water bath. When cool an oily viscous product is obtained insoluble in water and the usual organic solvents and consisting of a mixture of high molecular weight aliphatic sulphurized compounds. 40 parts thereof are mixed with parts of dimethyl-sulphate and the mixture is heated for 8 to 10 hours at to C. Then the excess of dimethylsulphate is extracted by means of organic solvents.

The water soluble sulphonium base thus obtained is a slightly colored viscous oil and is capable of improving the fastness to washing of dyeings obtained by means of substantive dyestuffs on cellulose material.

We claim:

1. sulphonium bases obtained by acting with sodium sulphide on a chlorohydrine and treating the mixture of high molecular aliphatic sulphurized compounds thus obtained with dimethylsulphate, being slightly colored viscous oils and being characterized by the property on after-treatment therewith of dyeings on cellulose material by means of substantive dyestufis, of substantially improving the fastness of such dyeings to Water, perspiration, boiling acids and washing.

2. A sulphonium base obtained by acting with sodium sulphide on a-dichlorohydrine and treating the mixture of high molecular aliphatic sulphurized compounds thus obtained with dimethylsulphate, which product is a slightly colored viscous oil and is characterized by the property, on after-treatment therewith of dyeings on cellulose material by means of substantive dyestuffs, of substantially improving the fastness of such dyeings to water, perspiration, boiling acids and Washing,

FERDINAND Mt'J'Nz. KARL KELLER. O'I'IO 'I'ROSKEN. 

